file locking with semaphores in unix

Detailed description of semaphores in UNIX multi-user systems ::: Author: Unknown resending from: Network clicks: 201 updated on: Article entry: Admin ::: [Font:] Resource

Source:Inter-process communication for Linux-semaphoresInter-process communication for Linux-semaphores版权声明：本文章内容在非商业使用前提下可无需授权任意转载、发布。转载、发布请务必注明作者和其微博、公众号地址，以便读者询问问题和甄误反馈，共同进步。微博ID：orroz公众号：Linux系统技术ObjectiveSemaphores are also called semaphores,

1. Mutual exclusion Lock (volume) and condition variableBy default, mutexes and condition variables are used for inter-thread synchronization, and can be used for inter-process synchronization if they are placed in a shared memory area.1.1 Mutual

The set of all system calls implemented by the operating system is the application programming interface (API ). Is the interface between applications and systems. Linux system calls include most common system calls and functions derived from system

Linux-unix System Programming Manual Learning notes --michael Kerrisk 1. Linux proprietary programming Features: ⑴epoll, a mechanism for obtaining file I/O event notifications. ⑵inotify, a mechanism for monitoring file and directory

  1. What kernel locks does Linux have?   The synchronization mechanism of Linux has been continuously improved since 2.0 to 2.6. From the initial atomic operation to the subsequent semaphores, from the large kernel lock to today's spin lock. The

Linux Kernel Design and Implementation of Reading Notes, Linux Kernel Chapter 3 Process Management 1. fork system calls are returned twice from the kernel: one is returned to the sub-process and one is returned to the parent process. the task_struct

Classic Linux kernel interview questions 1) What kernel locks does Linux have? 2) What is the meaning of the user mode and Kernel Mode in Linux? 3) How to Apply for a large kernel memory? 4) What are the main methods for inter-process communication?

12th Chapter Concurrency ProcessApplications that use application-level concurrency are called concurrent programs.Three basic ways to construct concurrent programs: process, I/O multiplexing, threading.12.1 Process-based concurrency programming1.

Reprint from http://www.itmian4.com/forum.php? MoD = viewthread & tid = 2867 #3352593-tsina-1-77660-27781be5b98356c3a2bccaf9a6db7b151. What kernel locks does Linux have?The synchronization mechanism of Linux has been continuously improved since 2.0